Sure, the Evo's front-facing camera enables you to call your snookums and let them see your mug while you two exchange sweet nothings. But, wouldn't it be much better if you could tell your phone to talk to the hand? Now it can at least in theory, with the availability eyeSight libraries for Android. EyeSight's Natural User Interface relies on a phone's camera to detect hand motions, enabling developers to write apps that change tracks, ignore callers, and display text messages with a wave. The down-side is that those apps need to be specifically written to work in this way, and while the librari
